Model 357
5x7mm Low Cost
Surface Mount VCXO
♦
Frequency Stability to ±20 PPM
♦+3.3Vdc
or +5.0Vdc Operation
♦HCMOS
Output
♦Operating
Temperature to –40°C to +85°C
♦Output
Enable Standard
♦Tape
& Reel Packaging
ELECTRICAL CHARACTERISTICS
Parameter
Output Clock Frequency
Model 357S, 357W
Model 357L, 357V
Frequency Stability (Note 1)
(See Ordering Information)
Absolute Pull Range
(Note 2)
(See Ordering Information)
Symbol
f
O
-
-
V
CC
Min
1.5
1.5
-
32, 50, 80, 100
4.5
2.97
-
-
-
0.5
0.3
0.9 * Vcc
-
-
45
-
-
-
-
50
10
2.5
-
-
Typical
-
-
-
-
5.0
3.3
-
-
-
2.5
1.65
-
-
-
-
-
<1
-
Positive
-
-
-
-
-
Max
52
52
20, 25, 50
-
5.5
3.63
40
50
15
4.5
3.0
-
0.1 * Vcc
5.0
55
10.0
-
10
-
-
-
-
0.5
100
Unit
MHz
MHz
± ppm
± ppm
V
V
mA
mA
pf
V
V
V
V
nS
%
mS
pS RMS
%
-
KOhms
KHz
V
V
nS
Supply Voltage
Model 357S, 357W
Model 357L, 357V
Operating Supply Current
C
L
= 15pf
Model 357S, 357W
Model 357L, 357V
Output load
Control Voltage
Model 357S, 357W
Model 357L, 357V
Output Voltage Levels
Logic '1' Level
I
OH
= 14 mA
Logic '0' Level
I
OL
= -14 mA
Output Transition Times
(10% to 90%)
Rise & Fall Time
C
L
= 15pf
Output Duty Cycle
(@ 50% Level)
Start Up Time
Phase Jitter
(Bandwidth 12K – 20M Hz)
Linearity
Transfer Function
Input Impedance
Modulation Roll-off
(@ -3dB)
Tri-state – Oscillator Run
Enable Input Voltage
Disable Input Voltage
Enable/ Disable Time
I
CC
C
L
V
C
V
OH
V
OL
T
R,
T
F
SYM
-
-
L
-
Z
C
-
V
IH
V
IL
t
PLZ
Notes
1. Inclusive of initial tolerance at the time of shipment, changes in supply voltage, load and operating
temperature.
2. Minimum guaranteed frequency shift from f
o
over variations in temperature, aging, power supply and load at
an average operating temperature of +40°C for 10 years.
♦ ♦ ♦
CTS Communications Components, Inc
.
♦
171 Covington Drive
♦
Bloomingdale, IL 60108
♦
630-924-3500
♦ ♦ ♦
Document No. 008-0244-0
Page 1 of 3
Rev E ECO # 16728
Model 357
5x7mm Low Cost
Surface Mount VCXO
ORDERING INFORMATION
357
M
Supply Voltage
L = +3.3 Vdc, Pin 2 Enable (std)
S = +5.0 Vdc, Pin 2 Enable (std)
V = +3.3 Vdc, Pin 5 Enable
W = +5.0 Vdc, Pin 5 Enable
Absolute Pull Range
A =
±32
ppm
B =
±50
ppm (std)
C =
±80
ppm
D =
±100
ppm
Frequency in MHz
M – Indicates decimal point
and MHz. Frequency shall
be recorded with all
significant digits identified.
Operating Temperature Range
C = -20°C to +70°C (std)
I = -40°C to +85°C
Frequency Stability
3 = ±50 ppm (std)
5 = ±25 ppm
6 = ±20 ppm
Example P/N: 357LB3C019M4400
MECHANICAL SPECIFICATIONS
( 7.0 )
0.276
PIN 1 IDENTIFIER
( 1.4 )
0.055
( 1.12 )
0.044
Suggested Pad Geometry
Dimensions in Inches [MM]
.100 [2.54]
.071 [1.80]
CTS ** YYWW
357LDC
•
19M4400
( 5.0 )
0.197
( 3.68 )
0.145
4
3
5
2
6
1
.079 [2.00]
.173 [4.40]
( 2.54 )
0.100
( 2.0 )
MAX
0.079
( 5.10 )
0.200
Key:
( MM )
Inch
.200 [5.08]
** Manufacturing Site Code.
Frequency shall be marked
with 4 significant digits to the
right of the “M”.
Terminations plated with
0.3 – 1.0 um gold (Au).
Pin
1
2
3
4
5
6
Symbol
VC
EOH
GND
Output
N.C.
Vcc
Functional Description
Control Voltage
Enable
Circuit and Package Ground
RF Output
Not Connected Internally
Supply Voltage
Enable Truth Table
Pin 2
“1”
“0”
Open
Pin 4
Output
High Imp.
Output
QUALITY AND RELIABILITY
Quality Systems meet or exceed the requirements of ISO 9000: 2000 standards.
Reliability Audits are performed on this or similar products with results available upon request.
♦ ♦ ♦
CTS Communications Components, Inc
.
♦
171 Covington Drive
♦
Bloomingdale, IL 60108
♦
630-924-3500
♦ ♦ ♦
Document No. 008-0244-0
Page 2 of 3
Rev E ECO # 16728
Model 357
5x7mm Low Cost
Surface Mount VCXO
ENVIRONMENTAL SPECIFICATIONS
§
§
§
§
§
§
§
§
§
Storage Temperature:
Temperature Cycle:
Mechanical Shock:
Sinusoidal Vibration:
Gross Leak:
Fine Leak:
Resistance to Soldering Heat:
High Temperature Operating Bias:
Frequency Aging:
-55°C to +125°C
400 cycles, -55°C to +125°C, 10 min dwell, 1 min transfer
1,500g’s, 0.5mS, ½ sinewave, 3 shocks each direction, in 3 planes
0.06” D.A., 10 to 55 Hz and 20g’s, 55 to 2,000 Hz,
3 cycles per plane
No leak shall appear while immersed in an FC40 or equivalent
liquid at 125°C for 20 seconds
Mass spectrometer leak rates less than 2x10
-8
cc/sec air equivalent
Product must survive 3 reflows of 260°C peak, 10 seconds
maximum
2,000 hours at 125°C, disregarding frequency shift
< 5 ppm shift in 1,000 hours at 85°C
Suggested Reflow Profile
300
Maximum 260°C, 10 seconds
Typical 225°C
200
Temp.
(°C)
100
130°C
0
0
20
40
60
80 1 0 0 1 2 0 1 4 0 1 6 0 180 200 220 240 2 6 0 2 8 0 3 0 0
Time (Seconds)
TAPE AND REEL INFORMATION
17.5
Ø13
4.0
8.0
Ø1.50
1.75
2.40
2.10
120°
2.0
8.40
7.90
16.0
Ø60
Ø180
5.70
5.40
DIRECTION OF FEED
Dimensions in Millimeters
Ø23
Device quantity shall be 1,000 pieces on a 180mm reel.
♦ ♦ ♦
CTS Communications Components, Inc
.
♦
171 Covington Drive
♦
Bloomingdale, IL 60108
♦
630-924-3500
♦ ♦ ♦
Document No. 008-0244-0
Page 3 of 3
Rev E ECO # 16728
实时操作系统RTOS
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